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  • Recreation areas on Hartwell Lake to open for seasonal hunting

    SAVANNAH, Ga. – The U.S. Army Corps of Engineers’ Hartwell Lake Office will open 10 recreation areas for hunting during the regular state-designated seasons. Three of its larger Georgia recreation areas will open for archery and small game hunting during the regular 2021-2022 Georgia hunting season. These areas include:

  • Hydrologic Analysis of Field Delineated Ordinary High Water Marks for Rivers and Streams

    Abstract: Streamflow influences the distribution and organization of high water marks along rivers and streams in a landscape. The federal definition of ordinary high water mark (OHWM) is defined by physical and vegetative field indicators that are used to identify inundation extents of ordinary high water levels without any reference to the relationship between streamflow and regulatory definition. Streamflow is the amount, or volume, of water that moves through a stream per unit time. This study explores regional characteristics and relationships between field-delineated OHWMs and frequency-magnitude streamflow metrics derived from a flood frequency analysis. The elevation of OHWM is related to representative constant-level discharge return periods with national average return periods of 6.9 years using partial duration series and 2.8 years using annual maximum flood frequency approaches. The range in OHWM return periods is 0.5 to 9.08, and 1.05 to 11.01 years for peaks-over-threshold and annual maximum flood frequency methods, respectively. The range of OHWM return periods is consistent with the range found in national studies of return periods related to bankfull streamflow. Hydraulic models produced a statistically significant relationship between OHWM and bank-full, which reinforces the close relationship between the scientific concept and OHWM in most stream systems.

  • Air Force Academy, USACE break ground on new cyber facility

    The Stillman parade field on the U.S. Air Force Academy in Colorado Springs, Colorado, was the site of a groundbreaking ceremony Aug. 6 for the new Madera Cyber Innovation Center. U.S. Air Force Academy Superintendent, U.S. Air Force Lt. Gen. Richard M. Clark hosted the afternoon event before a group of Servicemembers, distinguished guests and civilians.

  • USACE awards construction contract for Chena ‘mega project’ in North Pole

    In its largest civil works project in more than 30 years, the U.S. Army Corps of Engineers – Alaska District will begin reinforcing a portion of the Chena River Lakes Flood Control Project’s eight-mile-long earthen dam by spring 2022.

  • Officials set Sept. 25 as National Public Lands Day for Russell Lake

    SAVANNAH, Ga. – Cleanup time returns to Russell Lake! Officials at Richard B. Russell Lake will celebrate National Public Lands Day on Saturday, Sept. 25, by holding a lake-wide cleanup event from 9 a.m. to noon.

  • Holden Beach FCSA signing

    The U.S. Army Corps of Engineers, Wilmington District and the Town of Holden Beach will host a Feasibility Cost Sharing Agreement signing ceremony, Friday August 27, 2021 at 1:30pm at the picnic shelter across the street from Town Hall, located at 119 Davis St, Holden Beach, NC.

  • Middle East District awards Task Order for Super Hornet facilities in Kuwait

    The Transatlantic Middle East District (TAM) awarded a task order under the Kuwait MATOC for Super Hornet Training and Warehouse Facility and Warehouse Design, at Al Jaber Air Base, Kuwait. The task order was awarded Aug. 18 for $10,727, 924.00.

  • Corps awards construction contract for Biscayne Bay

    The U.S. Army Corps of Engineers, Jacksonville District announces an award of a construction contract for ecosystem restoration in south Florida valued at more than $10 million. The project is part of Biscayne Bay Coastal Wetlands (BBCW), Phase I.

  • The Corps Environment – August 2021 issue now available

    This edition highlights considering the environment when employing a risk management and systems approach, in support of Environmental Operating Principle #5.

  • Aligning research and monitoring priorities for benthic cyanobacteria and cyanotoxins : a workshop summary

    Abstract: In 2018, the US Army Engineer Research and Development Center partnered with the US Army Corps of Engineers–Buffalo District, the US Environmental Protection Agency, Bowling Green State University, and the Cawthron Institute to host a workshop focused on benthic and sediment-associated cyanobacteria and cyanotoxins, particularly in the context of harmful algal blooms (HAB). Technical sessions on the ecology of benthic cyanobacteria in lakes and rivers; monitoring of cyanobacteria and cyanotoxins; detection of benthic and sediment-bound cyanotoxins; and the fate, transport, and health risks of cyanobacteria and their associated toxins were presented. Research summaries included the buoyancy and dispersal of benthic freshwater cyanobacteria mats, the fate and quantification of cyanotoxins in lake sediments, and spatial and temporal variation of toxins in streams. In addition, summaries of remote sensing methods, omic techniques, and field sampling techniques were presented. Critical research gaps identified from this workshop include (1) ecology of benthic cyanobacteria, (2) identity, fate, transport, and risk of cyanotoxins produced by benthic cyanobacteria, (3) standardized sampling and analysis protocols, and (4) increased technical cooperation between government, academia, industry, nonprofit organizations, and other stakeholders. Conclusions from this workshop can inform monitoring and management efforts for benthic cyanobacteria and their associated toxins.